java - what are the variable naming conventions in java i a variable name should not consist of a keyword ii a variable name must be unique iii a variable name must begin with a letter an underscore or the dollar symbol which can be followed by sequences of let - skillgun

These are the variable naming conventions in java:
i. A variable name should not consist of a keyword.
ii. A variable name must be unique.
iii. A variable name must begin with a letter, an underscore, or the dollar symbol which can be followed by sequences of letters or digits.
iv. A variable name should not contain any spaces.
eg: int inkLevel;